AUTHORIZATION
Unfortunately no E-passport/approval for public road traffic
The Silent Pro is the right choice for all those who are looking for a very inconspicuous sports exhaust system. With the Silent Pro the name says it all, very quiet exhaust with a significant increase in top speed. Due to its very wide speed range, it is very easy to tune from standard cylinders to tuning cylinders.
Please note:
In order for the scooter to reach its full power and speed, it may therefore be necessary to adapt the engine to the new exhaust with other variator weights and/or clutch springs, even if it is to be used on a standard engine.
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